package cn.favebook.servlet;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import cn.favebook.Global;
import cn.favebook.bean.User;

/**
 * Servlet implementation class LogoutServlet
 */
@WebServlet("/zone/logout.do")
public class LogoutServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
       

	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		HttpSession session = request.getSession();
		User user = (User) session.getAttribute(Global.CURRENT_USER);
		if(user != null) {
			session.removeAttribute(Global.CURRENT_USER);
			response.sendRedirect("/favebook/signin.jsp");
		}else {
			response.sendRedirect("/favebook/404.jsp");
		}
	}



}
